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diff --git a/lib/lvgl b/lib/lvgl
deleted file mode 160000
-Subproject 0732400e7b564dd0e7dc4a924619d8e19c5b23a
diff --git a/lib/lvgl/src/misc/lv_tlsf.h b/lib/lvgl/src/misc/lv_tlsf.h
new file mode 100644
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+++ b/lib/lvgl/src/misc/lv_tlsf.h
@@ -0,0 +1,95 @@
+#include "../lv_conf_internal.h"
+#if LV_MEM_CUSTOM == 0
+
+#ifndef LV_TLSF_H
+#define LV_TLSF_H
+
+/*
+** Two Level Segregated Fit memory allocator, version 3.1.
+** Written by Matthew Conte
+**  http://tlsf.baisoku.org
+**
+** Based on the original documentation by Miguel Masmano:
+**  http://www.gii.upv.es/tlsf/main/docs
+**
+** This implementation was written to the specification
+** of the document, therefore no GPL restrictions apply.
+**
+** Copyright (c) 2006-2016, Matthew Conte
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are met:
+**     * Redistributions of source code must retain the above copyright
+**       notice, this list of conditions and the following disclaimer.
+**     * Redistributions in binary form must reproduce the above copyright
+**       notice, this list of conditions and the following disclaimer in the
+**       documentation and/or other materials provided with the distribution.
+**     * Neither the name of the copyright holder nor the
+**       names of its contributors may be used to endorse or promote products
+**       derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+** DISCLAIMED. IN NO EVENT SHALL MATTHEW CONTE BE LIABLE FOR ANY
+** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <stddef.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/* lv_tlsf_t: a TLSF structure. Can contain 1 to N pools. */
+/* lv_pool_t: a block of memory that TLSF can manage. */
+typedef void * lv_tlsf_t;
+typedef void * lv_pool_t;
+
+/* Create/destroy a memory pool. */
+lv_tlsf_t lv_tlsf_create(void * mem);
+lv_tlsf_t lv_tlsf_create_with_pool(void * mem, size_t bytes);
+void lv_tlsf_destroy(lv_tlsf_t tlsf);
+lv_pool_t lv_tlsf_get_pool(lv_tlsf_t tlsf);
+
+/* Add/remove memory pools. */
+lv_pool_t lv_tlsf_add_pool(lv_tlsf_t tlsf, void * mem, size_t bytes);
+void lv_tlsf_remove_pool(lv_tlsf_t tlsf, lv_pool_t pool);
+
+/* malloc/memalign/realloc/free replacements. */
+void * lv_tlsf_malloc(lv_tlsf_t tlsf, size_t bytes);
+void * lv_tlsf_memalign(lv_tlsf_t tlsf, size_t align, size_t bytes);
+void * lv_tlsf_realloc(lv_tlsf_t tlsf, void * ptr, size_t size);
+size_t lv_tlsf_free(lv_tlsf_t tlsf, const void * ptr);
+
+/* Returns internal block size, not original request size */
+size_t lv_tlsf_block_size(void * ptr);
+
+/* Overheads/limits of internal structures. */
+size_t lv_tlsf_size(void);
+size_t lv_tlsf_align_size(void);
+size_t lv_tlsf_block_size_min(void);
+size_t lv_tlsf_block_size_max(void);
+size_t lv_tlsf_pool_overhead(void);
+size_t lv_tlsf_alloc_overhead(void);
+
+/* Debugging. */
+typedef void (*lv_tlsf_walker)(void * ptr, size_t size, int used, void * user);
+void lv_tlsf_walk_pool(lv_pool_t pool, lv_tlsf_walker walker, void * user);
+/* Returns nonzero if any internal consistency check fails. */
+int lv_tlsf_check(lv_tlsf_t tlsf);
+int lv_tlsf_check_pool(lv_pool_t pool);
+
+#if defined(__cplusplus)
+};
+#endif
+
+#endif /*LV_TLSF_H*/
+
+#endif /* LV_MEM_CUSTOM == 0 */